Junker Heinz. Libretto. German. Public domain libretto, Library of Congress

mit Benützung der W. Hertz'schen Dichtung "Heinrich von Schwaben" von G. Franz ; Musik von Karl v. Perfall. (statement of responsibility)
U.S. RISM Libretto Project.
"Als Manuscript gedruckt"--verso of title page; legal notice--verso of title page; notice listing details of opera's performance, including theater, date, singers and roles--(pasted or otherwise attached to) p. 4; "Bemerkung"--p. 67 at end of text.
Performers' names not given.